From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-20.4 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 076DAC388F7 for ; Wed, 4 Nov 2020 23:20:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A528320786 for ; Wed, 4 Nov 2020 23:20:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="C+OLyB6S" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732793AbgKDXUL (ORCPT ); Wed, 4 Nov 2020 18:20:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44158 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732729AbgKDXUH (ORCPT ); Wed, 4 Nov 2020 18:20:07 -0500 Received: from mail-wr1-x44a.google.com (mail-wr1-x44a.google.com [IPv6:2a00:1450:4864:20::44a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7ADD7C0613D2 for ; Wed, 4 Nov 2020 15:20:05 -0800 (PST) Received: by mail-wr1-x44a.google.com with SMTP id m4so30707wrq.23 for ; Wed, 04 Nov 2020 15:20:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=ePhrCN9LvFC2NG8TKNxFN+Gj7X1gzwcPp9/mgeUcqHQ=; b=C+OLyB6Sff9JLLtKbp0uDfc/GKA28DIw6lwW0MLPBglUk4VKzX0PB63iCo0IiN2hmg Mj6O+jer6KakCOqcH4wXBtYO4pzh0TtpF/fJCUzQ+fkDX0DOGsMFTcUhH5WxF8QWgOXj O8dOWG9gSyD0OSZ+jV/oRcGiDs+CLC//f+/v+wBA/hhgb5hrR5J3DpYBpqVcu8GBmKoq lsiMxJfHcMagNgkCypOcmEaDQUCN+NphYLTOeFQjCnEJYK/kcahrCm9/6nYgj++T8xL2 Ci2c3EY0IAEjFDMWhZEd7NkatmoEbTjirFKTYtRZa7adSi3wz6ZVctDX99kVZFTABUQK ONeA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=ePhrCN9LvFC2NG8TKNxFN+Gj7X1gzwcPp9/mgeUcqHQ=; b=EfLuNcxRcAZjN5pq7OE8vjyNaQsVlkL5H2MuqZ0IPQhFyeJXmtwxqkODZeOysu5TvN dH74WdXSFEZNHggGs+moIMpxiWT64frlyfMh8gtPIJgsQuyefEPoKgFVvUXKJ/pyc8kC bJfMB1F1dgdue9l9HfH6KD/5t2l8yXKphvmIa5KMae3QYP2hAGhU25pl4n91XezkCt1Y ykaXD5pZRWFNBCkXKAyE+GMHTVN7HYwDoHmgeeYx/4r+dFEfoXSjSs55td217vvcg8UY l3O0Zui8A/dt7VZ0aL8J2N4yU2U3q/D87t8YuMw0jeB+0GalbPrpzTlIOf6+fTBnW4n5 rPUA== X-Gm-Message-State: AOAM533sPrE6in3/d8W3kwAW417fbl8kvZ4MMSiEOSbz2X7LdM5Ep3eV WzNl+FkTMNQjEWuN7j095XTS9K93zwBxheEC X-Google-Smtp-Source: ABdhPJwu6we4Z5OBZuGmSUCzF9eUS+7TnL8YtWz4qN7FahMt/MMmSKJRmtsqvh+Dt+lv/3AlAqthZAPUUb6e/BYZ Sender: "andreyknvl via sendgmr" X-Received: from andreyknvl3.muc.corp.google.com ([2a00:79e0:15:13:7220:84ff:fe09:7e9d]) (user=andreyknvl job=sendgmr) by 2002:a05:600c:216:: with SMTP id 22mr50135wmi.149.1604532004186; Wed, 04 Nov 2020 15:20:04 -0800 (PST) Date: Thu, 5 Nov 2020 00:18:39 +0100 In-Reply-To: Message-Id: Mime-Version: 1.0 References: X-Mailer: git-send-email 2.29.1.341.ge80a0c044ae-goog Subject: [PATCH v8 24/43] kasan, arm64: don't allow SW_TAGS with ARM64_MTE From: Andrey Konovalov To: Catalin Marinas Cc: Will Deacon , Vincenzo Frascino , Dmitry Vyukov , Andrey Ryabinin , Alexander Potapenko , Marco Elver , Evgenii Stepanov , Branislav Rankov , Kevin Brodsky , Andrew Morton , kasan-dev@googlegroups.com, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrey Konovalov Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Software tag-based KASAN provides its own tag checking machinery that can conflict with MTE. Don't allow enabling software tag-based KASAN when MTE is enabled. Signed-off-by: Andrey Konovalov Signed-off-by: Vincenzo Frascino Reviewed-by: Catalin Marinas --- Change-Id: Icd29bd0c6b1d3d7a0ee3d50c20490f404d34fc97 --- arch/arm64/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 1d466addb078..d58b4dcc6d44 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -134,7 +134,7 @@ config ARM64 select HAVE_ARCH_JUMP_LABEL select HAVE_ARCH_JUMP_LABEL_RELATIVE select HAVE_ARCH_KASAN if !(ARM64_16K_PAGES && ARM64_VA_BITS_48) - select HAVE_ARCH_KASAN_SW_TAGS if HAVE_ARCH_KASAN + select HAVE_ARCH_KASAN_SW_TAGS if (HAVE_ARCH_KASAN && !ARM64_MTE) select HAVE_ARCH_KGDB select HAVE_ARCH_MMAP_RND_BITS select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT -- 2.29.1.341.ge80a0c044ae-goog